{/* <meta name="viewport"  content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> */}
     
 //屏幕适应 
(function (win, doc) {
    if (!win.addEventListener) return;
    var html = document.documentElement;
    function setFont() {
      var html = document.documentElement;
      var k = 750;
      var clientW = html.clientWidth > 750 ? 750 : html.clientWidth;
      html.style.fontSize = clientW / k * 100 + "px";
    }
    setFont();
    setTimeout(function () {
      setFont();
    }, 300);
    doc.addEventListener('DOMContentLoaded', setFont, false);
    win.addEventListener('resize', setFont, false);
    win.addEventListener('load', setFont, false);
  })(window, document);
    
